I'm bringing up an old subject because I had the same problem. I found this post with a search, but the original author never posted what actually worked for him (Although, I figured his last post would be the most promising lead)

I managed to fix 4 these nodes and I thought I would post my solution for others who run into the same thing.
First, I downloaded and ran Rogue's plugin (see Compiling Errors sticky)(extract it to MOHTools/plugins) and that took care of a node at (0.00, 0.00, 0.00), but 3 others remained. I used the co-ordinates given in the error message to find the offending brushes. At each f the 3 sets of co-ordinates, there were a few angled brushes coming together at a point. I selected all these brushes and made them detailed (as suggested by balr14). Problem disappeared that easy (if only I hadn't spent days figuring this out)
Well, that's what worked for me, I hope I can save others some time.
